General Statistics - Niki, Takuto
765
Rank
14 - 38
Wins-Losses
322 (2014)
Highest ranking
General Statistics - Tajima, Naoki
683
Rank
42 - 48
Wins-Losses
630 (2019)
Highest ranking
Ranking - Niki, Takuto
| Year | Ranking | Summary | Clay | Hardcourt | Indoor | Grass | Other |
|---|---|---|---|---|---|---|---|
| 2022 | 866 | 15/16 | 3/3 | 12/13 | - | - | - |
| 2021 | 765 | 7/19 | - | 7/19 | - | - | - |
| 2020 | 594 | 1/2 | - | 1/1 | 0/1 | - | - |
| 2019 | 570 | 30/21 | - | 30/20 | 0/1 | - | - |
| 2018 | 509 | 36/23 | 6/4 | 28/16 | 2/3 | - | - |
| 2017 | 472 | 42/29 | 2/1 | 37/25 | 3/3 | - | - |
| 2016 | 377 | 34/25 | 0/1 | 33/21 | 1/3 | - | - |
| 2015 | 353 | 32/23 | 1/1 | 30/21 | 1/1 | - | - |
| 2014 | 322 | 50/22 | 5/1 | 43/18 | 2/3 | - | - |
| 2013 | 631 | 9/9 | 3/1 | 6/6 | 0/2 | - | - |
| 2012 | 623 | 7/8 | 0/1 | 5/5 | 1/2 | 1/0 | - |
| 2011 | 549 | 2/3 | - | 2/2 | 0/1 | - | - |
| 2010 | 750 | 0/1 | - | - | 0/1 | - | - |
| Summary | 265/201 | 20/13 | 234/167 | 10/21 | 1/0 | 0/0 |
Ranking - Tajima, Naoki
| Year | Ranking | Summary | Clay | Hardcourt | Indoor | Grass | Other |
|---|---|---|---|---|---|---|---|
| 2025 | 1418 | 1/6 | - | 1/6 | - | - | - |
| 2024 | 1060 | 28/27 | 2/4 | 25/19 | 0/2 | 1/2 | - |
| 2023 | - | 32/25 | 6/6 | 26/19 | - | - | - |
| 2022 | 1208 | 5/20 | 0/2 | 5/18 | - | - | - |
| 2021 | 683 | 21/24 | 8/8 | 10/14 | 3/2 | - | - |
| 2020 | 646 | 10/12 | 3/2 | 7/8 | - | 0/2 | - |
| 2019 | 630 | 30/24 | 9/9 | 18/13 | 3/2 | - | - |
| 2018 | 1217 | 5/6 | - | 4/5 | 1/1 | - | - |
| 2017 | - | 2/3 | - | 2/2 | 0/1 | - | - |
| 2016 | - | 0/1 | - | 0/1 | - | - | - |
| Summary | 134/148 | 28/31 | 98/105 | 7/8 | 1/4 | 0/0 |